Aside from the fact that it's called 'The Beginner Instrument' by most, there are a number of factors behind it being called so. First issues first; the acoustic devices (not just guitar) have been known to have rather a lot more pure sound and really feel to them.

Now specifically taking acoustic guitar into consideration, there are quite a few reasons why it's a newbie's instrument and why should newcomers study to play on it first slightly than picking up electrical ones straight.

One of the largest reasons why to learn to play on an acoustic first is because it is much harder to play. To be more particular, the motion (distance between strings and the fret-board) on this instrument is relatively higher to that of an electric guitar. It's made in such a manner that enjoying on it is a tad bit more tough than taking part in on an electric. That being mentioned, if you can master a scale, a track or any musical piece for that matter on an acoustic guitar, you may undoubtedly play it a lot cleaner and make it sound much more interesting on an electrical guitar. Why? The same reason; because the motion of an electric is way smoother and lower than an acoustic.

Secondly, acoustic guitars have a heavier wood high as compared to electric guitars. This being said, you need to use slightly harder picking and fretting in order for it to vibrate. This is likely one of the reasons why these guitars generally have higher gauge strings (thicker strings) that are comparatively harder to press. To not overlook that with a view to endure the strain of those strings, the neck of an acoustic guitar can also be a lot thicker as compared to an electric guitar. This is among the reasons why perfecting a musical piece on this guitar first would enable you to fully nail it on the electrical guitar.

As far as the best and left hand strategies are concerned, methods like legato, hammer-on and pull-off, alternate picking and more advanced methods like hen picking and sweep picking, in the event you excellent them on an acoustic guitar, take my word for it, you will literally sound extremely clear whereas enjoying them on the electrical guitar.

Plenty of inexperienced persons fascinated by playing completely different genres like jazz, pop, rock, etc. have been suggested by their academics to begin learning on an acoustic first. This enabled them to more or less sound like a pro when they play those same issues on the electrical guitar with numerous effects.

Other than all of this, the acoustic guitar clearly sounds more appealing in the rhythm section regardless of the style you're interested in. To these people who get bamboozled as to why their licks do not sound as clean as another guitarists; I might recommend to making an attempt playing and perfecting the same lick on an acoustic guitar first. Considering all of this, I would say it is definitely a better choice to be taught on an acoustic guitar first after which use the perks of electrical instruments.